With a pre-sale estimate of $100,000-$160,000, the Monet is the auctions expected top lot. It is signed verso and marked Gallery Simon, Paris, stamped and with a pencil-written reference number. The painting is possibly a study made on location, for one of the paintings in his famous 1877 series of the Gare Saint-Lazare train station. The work is 14 ½ inches by 18 inches, framed.

The Van Gogh, one of five works in the auction attributed to the Dutch master, is signed by the artist and is possibly a study for the 1890 finished painting of the same title named above, the original of which is in the collection of the Hermitage in Saint Petersburg, Russia. The painting in the auction is unframed, about 7 ¾ inches by 9 ¾ inches, and is estimated at $40,000-$50,000.

Woodshed Art Auctions Prestige Collection sales are so-named because they are smaller events focused on modestly priced works by big-name artists. This sale features Impressionist, Modern and Pop artworks by artists such as James McNeil Whistler, Marc Chagall, Andy Warhol, Roy Lichtenstein, Fernand Leger, Man Ray and Tom Wesselmann, as well as Monet and Van Gogh.

The auction is already up and online. All lots may be viewed at www.woodshedartauctions.com, and internet bidding is available through Invaluable.com and Auctionzip.com. The auction will begin at 12 oclock noon Eastern time. Previews will be held online, at the Woodshed Art Auctions website, or by appointment in the firms gallery, at 1243 Pond Street in Franklin, Mass.

While researching pieces for this Prestige Collection, the theme of artists working studies came about, said Bruce Wood of Woodshed Art Auctions. I found corresponding finished artworks for several drawings and paintings that at first appeared to be fine examples of each artists work. As a painting conservator and historian, these correlations were both satisfying and gratifying.

Another major Van Gogh attribution is a lithographers crayon on heavily textured wove paper, titled The Wounded Veteran, possibly a study for the finished drawing of the same name in the collection of the Harvard Art Museum (est. $40,000-$60,000). Also, a gouache, watercolor and black ink drawing attributed to Marc Chagall (1887-1985), drawn on the half-title page of The World of Marc Chagall (1968), should hit $60,000-$80,000.

An oil on canvas portrait of a woman attributed to James Abbott McNeill Whistler (1834-1903), signed with Whistlers monogram, done in the dark colors and limited value-range of his major portraits, should reach $80,000-$120,000. Also sold will be a mixed media on paper attributed to Willem de Kooning (1904-1997), titled Woman and 8 inches by 10 inches ($20,000-$40,000).

Fans of Andy Warhol (1928-1987) will have a field day, starting with an unframed mixed media drawing of a silver shoe on a printed page, titled With All My Shoes, done in watercolor, silver paint and black ink (est. $60,000-$80,000); and moving to a gouache painting titled Blue Pistol, artist-signed both front and back and measuring 8 inches by 10 ½ inches (est. $20,000-$40,000).

Additional Warhol attributions include a mixed media on paper titled Electric Chair (Orange), signed front and back and possibly a study for a larger painting, unframed and 8 inches by 11 inches (est. $20,000-$30,000); and a whimsical drawing in pencil and watercolor on buff, medium-weight drawing paper, titled Angel with Birds, pencil-signed (est. $10,000-$15,000).

A signed ink drawing on white paper attributed to Roy Lichtenstein (1923-1997), titled Smiling Woman, verso pencil signed with a reference number and collectors stamp, is expected to rise to $60,000-$80,000; while a drawing in ink and crayon on white, card-weight bond paper by Peter Max (b. 1937), titled Running Man, showing stars and a rainbow, should bring $8,000-$12,000.

A mixed media on paper by Tom Wesselmann (1931-2004), titled Nude with Cigarette, signed front and back and verso marked Contemporary Masters Exhibition, is estimated at $30,000-$50,000; while a charcoal on heavy white textured art paper attributed to Jean-Michel Basquiat (1960-1988), titled Skull, signed on the front and dated 1981, should sell for $5,000-$10,000.

A pair of last-minute additions to the sale are drawings attributed to Salvador Dali (1904-1989), each one carrying an estimate of $30,000-$50,000. One, titled Surreal Figure, is signed with the words Dali and Gala formed as a monogram, with as crown ring and cross above (Gala was Dalis wife and muse). The other drawing is titled Surreal Figure Standing on an Elephant.

An untitled (Woman with Flowers) ink and tempera on paper laid to backing board by Fernand Leger (1881-1955), with a verso ID label from the Condotti Street Gallery in Rome Italy, signed, should garner $20,000-$30,000; and a drawing in green ink on buff bond paper attributed to Jean Cocteau (1889-1963), a rare self-portrait by the artist-poet-filmmaker, should hit $4,000-$6,000.

A 17-inch-tall (including marble base) bronze sculpture attributed to Francisco Zuniga (1913-1998), titled Muter de Pie, signed by the artist, has a pre-sale estimate of $15,000-$25,000; while an untitled composition, watercolor on paper attributed to Wassily Kandinsky (1866-1944), signed front and back with the artists monogram, is expected to hammer for $10,000-$15,000.